Abstract: A method and apparatus for selecting a filter pack and a well casing slot size for a well which uses soil classification data derived from cone penetrometer test. A user of the method and apparatus utilizes a piezocone or other soil classification sensors to measure soil properties in an area of contaminated soil or non-contaminated soil and then determine the soil type at specific depths within the soil. A multisensor probe generates a laser induced fluorescence intensity plot of the area of soil contamination which is superimposed on a soil boring log identifying the soil type at specific depths within the soil. The soil type for the area of contaminated soil is identified from the load cell data. Contamination within the soil is identified using the laser induced fluorescence intensity plot.

Abstract: A piezocone for measuring the soil's resistance to penetration and pore water pressure while being advanced into the ground by a twenty ton hydraulic cone penetrometer rig. The low pressure piezocone includes a friction sleeve and a conical tip attached to the lower end of friction sleeve. The conical tip develops the cone resistance. The friction sleeve is an isolated cylindrical sleeve which measures the resistance of the soil as the sleeve passes through the soil. The pore water pressure is measured by a porous element mounted in the conical tip of the piezocone and a pressure transducer mounted in the cylindrical friction sleeve of the piezocone. The measurements including pore water pressure, cone resistance and the soil resistance are supplied to a computer which includes a Piezocone Dissipation Analysis program for processing the piezocone measurements to generate dissipation curves for each depth at which the piezocone provides hydrogeologic site characterization data.

Abstract: A piezocone for measuring the soil's resistance to penetration and pore water pressure while being advanced into the ground by a rig. The piezocone includes a friction sleeve and a conical tip attached to the lower end of the sleeve. The conical tip develops the cone resistance. The friction sleeve is an isolated cylindrical sleeve which measures the resistance of the soil as the sleeve passes through the soil. The pore water pressure is measured by a porous element mounted in the conical tip of the piezocone and a pressure transducer mounted in the cylindrical friction sleeve of the piezocone. The measurements including pore water pressure, cone resistance and soil resistance are supplied to a computer which includes a Piezocone Dissipation Analysis program for processing data from the measurements to generate dissipation curves for each depth at which the piezocone provides hydrogeologic site characterization data. Soil classification is also provided from a data file stored within the computer.